Properties of radium.Shh Shh shh. Element name: Radium (radium).Shh Shh shh. Symbol of element: Ra.Shh Shh shh. Atomic number (atomic number): 88.Shh Shh shh. Atomic mass (atomic mass): 226.0 atomic mass unit (AMU).Shh Shh shh. Melting point (melting point): 700.0 C (973.15 K).Shh Shh shh. Boiling point (boiling point): 1737.0 DEG Xia (2010.15 K).Shh Shh shh. The proton / electron in an atom radium: 88.Shh Shh Shh, the number of neutrons in the atom radium - 226: 138.Shh Shh shh. Crystal structure: cubic (Cubic).Hi hi hi density at 293 K: 5.0 g / cm.Shh Shh shh. Color: white sparkle.
การแปล กรุณารอสักครู่..